"Love Ero Musume" is a romantic comedy manga that centers around the life of Ritsu Shikura, a high school student who becomes entangled in a series of humorous and awkward situations due to his interactions with a mysterious girl named Ero Musume. Ero Musume, whose real name is never revealed, is a peculiar character who claims to be a goddess of love and sex, though her true nature remains ambiguous throughout the series. She appears in Ritsu's life unexpectedly, often causing chaos with her bold and uninhibited behavior, which contrasts sharply with Ritsu's reserved and somewhat prudish personality.

The narrative explores the dynamic between Ritsu and Ero Musume as they navigate their unusual relationship. Ero Musume frequently tests Ritsu's patience and boundaries with her provocative antics, which range from making suggestive comments to outright embarrassing him in public. Despite her eccentricities, Ero Musume genuinely cares for Ritsu and often helps him in her own unconventional way, whether it’s offering advice on love or intervening in his personal life. Ritsu, on the other hand, struggles to understand Ero Musume's intentions and grapples with his growing feelings for her, even as he tries to maintain a semblance of normalcy in his daily life.

The story also introduces a supporting cast of characters, including Ritsu's classmates and friends, who add depth to the narrative. These characters often find themselves drawn into the chaos caused by Ero Musume, leading to a series of comedic and sometimes heartfelt moments. The manga balances its comedic elements with occasional moments of introspection, as Ritsu reflects on his relationships and the nature of love and desire. The interplay between the characters and the evolving dynamics of their relationships form the core of the series, creating a blend of humor, romance, and lighthearted drama.

Throughout the manga, the themes of love, sexuality, and personal growth are explored in a light-hearted manner, with Ero Musume serving as a catalyst for Ritsu's development. The series maintains a playful tone, often using exaggerated situations and comedic misunderstandings to drive the plot forward. While the premise revolves around the unconventional relationship between Ritsu and Ero Musume, the story also touches on broader themes of self-discovery and the complexities of human emotions, making it a multifaceted and engaging read.